The music is also very, very important for a game. It can be very challenging because we are not talking about 90 minutes of film, we are talking about ten or twelve hours of music. It's a lot of work.
When we met with the composer Hans Zimmer and his team, their first reaction was that they weren't very interested in video games because they're all pretty much the same.
We explained that this one would be different, we sent them the script and talked about the characters.
The music was incredibly important because of the emotional dimension of the game and the intentions that we had. They said "yes" and they really helped to make the game better.